Jan Tadeusz Markiel, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

MD2025-0411 Issued in NM

Practice address

267 Grant Street
Bridgeport Hospital, Department of Medicine
Bridgeport, CT 06610

Phone

(203) 384-3000

Fax

(203) 384-4294

NPI assigned

May 2, 2022

Reactivated

Feb 6, 2023

Sex

Male

Sole proprietor

Yes

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in NM

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Internal Medicine

Education

Other, 2020

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Hospitalist Medicine Physicians of Texas, PLLC

  • Internal Medicine Physician
  • Humble, TX
  • NPI 1629307095

  NM

  Medicare reassignment NPD

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1651449600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788480000000",
    "number": "1902541196",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "60 STRAWBERRY HILL AVE UNIT 803",
            "city": "STAMFORD",
            "state": "CT",
            "postal_code": "069028500",
            "telephone_number": "332-260-5097"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "267 GRANT STREET",
            "address_2": "BRIDGEPORT HOSPITAL, DEPARTMENT OF MEDICINE",
            "city": "BRIDGEPORT",
            "state": "CT",
            "postal_code": "06610",
            "telephone_number": "203-384-3000",
            "fax_number": "203-384-4294"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MARKIEL",
        "first_name": "JAN",
        "middle_name": "TADEUSZ",
        "name_prefix": "Mr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2022-05-02",
        "last_updated": "2026-09-04",
        "certification_date": "2026-09-04",
        "deactivation_date": "2023-01-30",
        "reactivation_date": "2023-02-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NM",
            "license": "MD2025-0411",
            "primary": true
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Stuart Marcus, M.D.
• Scott N Margraf, M.D
• Debora Mariano, PA
• Stevan Marjanovic, M.D.
• Daniela Markelon
• Robert D Markowitz, D.D.S.
• Melissa Marlowe-Reiner, LMFT
• Yessica Marquez
• Therese Marrotte
• Brian Marsh, P.T.

• Internal Medicine Physician in Bridgeport, CT
• Providers in Bridgeport, CT by specialty
• Internal Medicine Physician in Connecticut

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 4, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.